1 to 6 (of 6 reviews)
"Well, as the name states, this is a "Challenge Kit." that should not be taken lightly. As others have stated there are no instructions in the kit to tell you where everything goes, but lets just hope you've taken apart more than a few airsoft before trying to put this kit together.
It can be tough.
But if you know your way around airsoft guns then it shouldn't be too bad. I got mine mostly together within a few hours. I had to wait on final assembly as some of the parts I put on this gun had to be ordered in. I didn't really have a doner gun for all the other parts needed to build a full rifle. But in the end, I got it all together and it is a neat gun that gets noticed a lot at local fields. People always have to look twice at it. Recently someone said to me about this gun, "It's like an AR, but with all the disadvantages of an AK." And that's kind of true.
The hardest part about this gun is getting it to feed all AK style mags correctly. At this point I have most of the cheaper AK mags fitting and feeding properly. This gun hates LCT mags for some reason. Both Hi-caps and Mids. It seems to prefer the cheaper CYMA mid-caps. And I'm OK with that!
One of the weirder parts of this kit is the two piece hop up unit. You have to fully assemble it. Including the screws that hold the two halves together. Remember, everything needs to go together, nothing comes pre-assembled. Have a flat file near by and be ready to make small "adjustments" to make things fit. Have a few spares of different things like screws and other small bits. All the unique parts to this gun come in the kit, but you will have to supply a few odds and ends to make it all work together nicely.
The lower receiver is made a bit thin in spots. You may have build other AR type guns or made mods to those bodies, but with thi body you need to be gentle and tap lightly while fully supporting some parts. As was stated by another reviewer here, putting in the trigger guard rear split pin is one of these spots that needs extra love and attention. That area is easily damaged and cracked. I wish that area had more material around there to help support it better. I ended up using a small screw instead of that pin because the torrances for most of the holes are extremely tight. In a lot of cses I needed to either open the hole up slighting using a small round file or a flat file on the pin passing through the body to get thing to fit without damaging the body.
In the end everything fits and it now works very well.
A couple of pointers:
1) the hop up unit uses a lot of the inner barrel inside itself. This is good because it helps support the barrel, you will need a longer barrel than you think. I used a Lonex 14.5" outer barrel which should take a 363mm inner barrel in a normal AR set up. In thi case to get the inner barrel all the way to the end of the outer barrel I used a 407mm inner barrel length. Again, that's OK with me!
2) And the trick I found to fix the feed issues was to use a thin rubber O-ring around the part of the hop up unit that fits inside the gearbox shell. It spaced out the hop unit to allow better feeding of more mags. It was a super simple and easy fix. Just nothing too thick. You just need a couple millimeters of space to achieve great feeding.
Over all, I'm pretty happy with the kit. It makes for a very unique rifle that not a lot of people have. "This is a bit of a pain to put together but I accomplished it with no instructions and no online tutorials. Very solid and very unique. For a person like me that has a huge Boneyard of parts I was able to assemble basically everything I wanted except for a few custom touches out of the scraps from leftover guns. I didn't really have any issues with anything fitting but perhaps I just got lucky in that department. I ended up going with a G&G gearbox full of aftermarket goodies a Noveske rail and unknown outer barrel. Everything fit well although I did have to source a couple parts that were supposed to come with it, and ended up receiving two selector switches instead of one for some unknown reason. Fortunately everything that is specific to the SR 47 was included.
The one con I will give it was finding mags that fit. None of my lonex, nor any other magazines I happened to have lying around would fit, not so much fit because they fit in the mag well but wouldn't feed. G&P mid caps do the trick just fine and are all I run in the gun now, the only other gripe relates to the mag well as well it really need some type of block off plate at the top of the mag well otherwise you really have to focus to get the magazine in, it's not a quick Mag swap on the field.
Other than that I have a beautiful custom rifle now that stands apart and I am very happy with it "Okay, so I got this trying to find something really unique that still uses V2 gearbox parts. And I certainly got that.
A nice black painted finish with good logo paint as well.
All parts to convert from a normal M4 are included.
A very nice unique look.
This almost certainly will take modifications to get everything to fit properly.
Absolutly no instructions included and no tutorial online.
This was extra hard for me because of simple things such as the bolt release and which way the dust cover pin goes and little things of the sort.
Overall a great buy. There's not really anything else like it. I get complimented all of the time and it has a super aggressive look with the Centurion Arms 12" rail (the one that is really slim and uses their own system) and a suppressor.
I'm afraid that this won't be availabe for much longer seeing that it's been on the Epic Deals list and the price keeps dropping, so get it while you can! "Not a beginner project by any stretch of the imagination. However... I dig it. I get lots of compliments, questions etc on "What is that... THING?!?!?"
VERY unique, while still using commonly found magazines.
Good quality materials
Much Less expensive than the $500 HurricanE kit.
Basically a blank slate; customize to your liking.
Comes with a crappy selector, I'd recommend sourcing your own.
Upper Receiver required a small amount of milling to easily slide over my gearbox.
Proprietary Hop-Up design. I want my ProWin :(
Finicky with Mags.
With that being said, I like it. Just take care assembling it, don't force anything as the tolerances are TIGHT, and you'll be fine. "The receiver is made of low quality pot metal. It broke as i was inserting a pin for the trigger guard. I've done that before I used a rubber mallet and took the proper precautions and the receiver broke on the third strike. "This is a very nice piece of work, I was fortunate to win one at the raffle after Operation Fallout. It was a bit of a challenge to put together as it came with no directions and there is nothing on-line to help. It comes with lots of little pieces so make sure your work area is clean and organized. After a bit of trial and error, I got it together and it is pretty sweet. Displaying
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